A protective structure for a moisture-proof distribution box and a method of using the same

Abstract

The present invention relates to the technical field of distribution boxes, specifically to a protective structure of a moisture-proof distribution box and a method for using the same, the protective structure comprising a moisture-proof isolation structure, the moisture-proof isolation structure being composed of a partition and a telescopic isolation plate, a moisture-proof cavity being formed on the side of the distribution box body through the moisture-proof isolation structure, a front box door being provided on the distribution box body, and a side box door being provided on the distribution box body, a heat dissipation slot being provided on the side of the distribution box body close to the moisture-proof cavity, a fan being fixedly installed on the partition, a positioning structure being provided on the telescopic isolation plate, a sealing plate and a counterweight being slidingly installed on the upper limit of the side box door, and the sealing plate and the counterweight being connected by a sliding rope, the sliding rope being connected in the adapter, and a telescopic support leg being installed on the bottom of the side box door, a sealing plate being provided on the inner side of the side box door, and an outer baffle being slidingly installed on the outer side of the side box door, and the sealing plate and the outer baffle being connected by a sliding seat, so as to achieve the purpose of improving the moisture-proof performance and convenience of use of the distribution box.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution boxes, and in particular to a protective structure of a moisture-proof distribution box and a use method thereof. Background Art

[0002] As a crucial component of the power supply system, the safety and reliability of distribution boxes directly impact the continuity of power supply and the safety of users. Traditional distribution boxes are often designed and constructed to protect against environmental factors such as water and dust, but these boxes lack protection against humid environments. Humid environments primarily include rainy areas, humid climates, and some industrial sites. The high humidity in these locations can easily lead to moisture contamination of electrical components within distribution boxes, posing a series of safety hazards. For example, humid environments can degrade the insulation performance of electrical equipment, increasing the risk of leakage and short circuits, which can lead to serious consequences such as equipment damage, power outages, and even fire. Furthermore, moisture accumulation within distribution boxes can cause corrosion, damaging metal components, reducing their service life, and increasing maintenance and replacement costs. Furthermore, humidity can cause oxidation of circuit components within distribution boxes, disrupting their proper function and causing equipment failures, resulting in financial losses and safety hazards for users.

[0003] Current distribution boxes are usually designed with corresponding sealing protection structures, which can prevent moisture from entering the box when the box door is closed. However, due to the presence of heat dissipation slots, the direct air exchange process will allow moisture to enter the box. On the other hand, there are situations where the distribution box must be inspected in rainy weather. Often, after the box door is opened, rainwater can easily enter the box. Summary of the Invention

[0004] The purpose of the present invention is to provide a protective structure of a moisture-proof distribution box and a method of using the same, so as to achieve the purpose of improving the moisture-proof performance and ease of use of the distribution box, and to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective structure of a moisture-proof distribution box, comprising a moisture-proof isolation structure arranged in the main body of the distribution box, the moisture-proof isolation structure being composed of a partition and a telescopic isolation plate, a moisture-proof cavity being formed on the side of the main body of the distribution box through the moisture-proof isolation structure, a front box door being rotatably opened on the main body of the distribution box, and a side box door being rotatably opened on the main body of the distribution box, a heat dissipation slot being provided on the side of the main body of the distribution box close to the moisture-proof cavity, a fan being fixedly mounted on the partition, an air guide cover being mounted on the fan, and a heater being provided on the air outlet of the air guide cover, a positioning structure being provided on the telescopic isolation plate The telescopic isolation plate is fixed in a raised state through a positioning structure, and a sealing plate and a counterweight block are installed on the upper limit sliding of the side box door, and the sealing plate and the counterweight block are connected by a sliding rope, and the sliding rope is connected in the adapter, and the sealing plate and the counterweight block can be lifted and lowered by the sliding rope. An elastic part is fixedly connected to the sealing plate, and a telescopic support foot is installed at the bottom of the side box door. The sealing plate is arranged on the inner side of the side box door, and an outer baffle is slidingly installed on the outer side of the side box door. The sealing plate and the outer baffle are connected by a sliding seat, and the sliding seat is arranged in the guide groove of the side box door. A receiving box with a water guide function is assembled on the outer baffle, and a moisture-proof net is provided on the air inlet of the fan.

[0006] Preferably, the space inside the distribution box body is divided into a functional cavity and a moisture-proof cavity by a moisture-proof isolation structure, and the distribution device is installed through the functional cavity. The distribution device is provided with a front control panel and a side control panel, and the front control panel and the side control panel are respectively arranged towards the front box door and the side box door.

[0007] Preferably, the front box door is installed by hinges on the side edge of the distribution box body, and the side box door is installed by hinges on the upper edge of the distribution box body, the partition is installed on the top of the distribution box body, and the telescopic isolation plate is connected to the bottom surface of the partition, and both sides of the telescopic isolation plate are in close contact with the inner wall of the distribution box body.

[0008] Preferably, the heat dissipation groove is arranged at the bottom of the side of the distribution box body, and the fan is installed in the installation groove on the top of the partition, a cavity directed obliquely downward is provided in the air guide cover, and the heater adopts a resistance wire heating structure, and a temperature sensor is provided at the heater position.

[0009] Preferably, a bottom plate is installed at the bottom of the telescopic isolation plate, and positioning pieces are provided on both sides of the bottom plate, anti-drop pins are provided on the positioning pieces, and a card seat is installed in the middle of the inner wall of the distribution box body.

[0010] Preferably, a first guide rail and a second guide rail are arranged side by side on the inner wall of the side box door, and the closing plate and the counterweight are respectively installed in the first guide rail and the second guide rail, the adapter is installed on the top of the first guide rail and the second guide rail, and the sliding rope makes a 180-degree turn in the adapter, a hanging seat is installed on the side box door, and the elastic member is connected between the hanging seat and the closing plate.

[0011] Preferably, a protective cover is provided through the bottom of the side box door, and the telescopic support legs are installed in the protective cover.

[0012] Preferably, the guide groove is set through the side box door and is shielded by the outer baffle. The slide is slidably installed in the guide groove. A horizontal upper seal is set on the top of the outer baffle, and the upper seal is in contact with the surface of the side box door.

[0013] Preferably, the storage box is mounted on the outer baffle through a fixing piece, and a lower seal is provided between the storage box and the outer baffle, and the lower seal is in contact with and connected to the surface of the side box door.

[0014] A method for using a protective structure of a moisture-proof distribution box, the method comprising the following steps:

[0015] S1, normal operation, heat is dissipated through the high and low staggered heat dissipation slots and fans, the moisture-proof cavity is used for buffering, and dehumidification is carried out through the moisture-proof net on the fan. At the same time, when the temperature inside the box is low, the heater heats the air to evaporate and remove water vapor;

[0016] S2, control and maintenance: In normal weather, the front box door is opened and the distribution box is controlled and maintained through the front control panel. When it rains, the side box door is opened to form a rain shield mechanism, and then the telescopic isolation plate is lifted up and fixed to open the passage between the moisture-proof cavity and the functional cavity. The distribution box is controlled and maintained through the side control panel;

[0017] S3, automatic rain protection. When the side box door is opened, the heat dissipation slot is closed by moving the sealing plate, so that the side box door forms a complete rain protection structure. When it rains but the side box door is not opened, the sealing plate automatically moves down under the action of rain to close the heat dissipation slot, and the rainwater is processed after the rain stops.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The isolated structure and moisture-proof cavity design of the present invention effectively prevent moisture from entering the functional cavity, thereby protecting electronic components, extending equipment life and improving operational reliability.

[0020] 2. The double-door structure of the distribution box of the present invention allows workers to flexibly choose to open the front door or the side door for control and maintenance under different weather conditions, providing convenience.

[0021] 3. The staggered arrangement of the heat dissipation channel and the fan and the moisture-proof net design in the present invention improve the heat dissipation efficiency while effectively preventing moisture from entering the functional cavity, thereby maintaining the dryness and normal operating temperature of the equipment to a certain extent.

[0022] 4. The sealing plate of the present invention is designed to automatically adjust when the side box door is opened to ensure the closure of the heat dissipation slot and prevent rainwater from directly entering the box body. When the side box door does not need to be opened, the sealing plate can also automatically move down to block it.

[0023] 5. By adding a heater and a fan, the air flow and drying can be automatically adjusted according to the temperature inside the box, ensuring that the appropriate environment inside the equipment can be maintained under different climatic conditions.

[0024] 6. The storage box of the present invention can be easily disassembled and rainwater can be processed after the rain stops, which enhances the maintenance convenience of the equipment and the overall user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the distribution box of the present invention in normal use.

[0026] Figure 2 This is a schematic diagram of the distribution box of the present invention in use on a rainy day.

[0027] Figure 3 This is a schematic diagram of the distribution box of the present invention in an open state.

[0028] Figure 4 This is the first schematic diagram of the main structure of the distribution box of the present invention.

[0029] Figure 5 This is a second schematic diagram of the main structure of the distribution box of the present invention.

[0030] Figure 6 Schematic diagram of the moisture-proof isolation structure of the present invention.

[0031] Figure 7 Schematic diagram of the installation position of the fan structure of the present invention.

[0032] Figure 8 It is a schematic diagram of the side box door structure of the present invention.

[0033] Figure 9 This is a schematic diagram of the installation position of the sealing plate structure of the present invention.

[0034] Figure 10 Schematic diagram of the sealing plate structure of the present invention.

[0035] Figure 11 Schematic diagram of the sealing plate and the containing box structure of the present invention.

[0036] In the figure: 1. Distribution box body; 2. Front box door; 3. Side box door; 4. Partition; 5. Telescopic isolation plate; 6. Moisture-proof cavity; 7. Heat dissipation slot; 8. Fan; 9. Air guide cover; 10. Heater; 11. Bottom plate; 12. Positioning piece; 13. Anti-drop latch; 14. Card seat; 15. First guide rail; 16. Second guide rail; 17. Closing plate; 18. Counterweight; 19. Slide rope; 20. Adapter; 21. Hanging seat; 22. Elastic piece; 23. Telescopic support leg; 24. Guide groove; 25. Slide seat; 26. Outer baffle; 27. Upper seal; 28. Storage box; 29. ​​Fixing piece; 30. Lower seal; 31. Moisture-proof net. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 11 The present invention provides a technical solution: a protective structure of a moisture-proof distribution box, comprising a moisture-proof isolation structure arranged in a distribution box body 1, the moisture-proof isolation structure is composed of a partition 4 and a telescopic isolation plate 5, a moisture-proof cavity 6 is formed on the side of the distribution box body 1 through the moisture-proof isolation structure, a front box door 2 is rotatably opened on the distribution box body 1, and a side box door 3 is rotatably opened on the distribution box body 1, a heat dissipation slot 7 is provided on the side of the distribution box body 1 close to the moisture-proof cavity 6, and a fan 8 is fixedly installed on the partition 4, and an air guide cover 9 is mounted on the fan 8, and a heater 10 is provided on the air outlet of the air guide cover 9, and a positioning structure is provided on the telescopic isolation plate 5, and the telescopic isolation plate 5 is fixed to the raised position by the positioning structure. In this state, a closing plate 17 and a counterweight 18 are installed on the upper limit sliding of the side box door 3, and the closing plate 17 and the counterweight 18 are connected by a sliding rope 19, which is connected to the adapter 20. The sliding rope 19 enables the closing plate 17 and the counterweight 18 to be lifted and lowered. An elastic member 22 is fixedly connected to the closing plate 17, and a telescopic support foot 23 is installed at the bottom of the side box door 3. The closing plate 17 is arranged on the inner side of the side box door 3, and an outer baffle 26 is slidingly installed on the outer side of the side box door 3. The closing plate 17 and the outer baffle 26 are connected by a slide 25, and the slide 25 is arranged in the guide groove 24 of the side box door 3. A receiving box 28 with a water-conducting function is assembled on the outer baffle 26, and a moisture-proof net 31 is provided on the air inlet of the fan 8.

[0039] The space inside the distribution box body 1 is divided into a functional cavity and a moisture-proof cavity 6 by a moisture-proof isolation structure. The distribution device is installed through the functional cavity, and the distribution device is provided with a front control panel and a side control panel, and the front control panel and the side control panel are respectively arranged towards the front box door 2 and the side box door 3.

[0040] The distribution box of the present invention adopts an isolation structure, and a moisture-proof cavity 6 is formed on the side of the functional cavity where electronic components are installed through a moisture-proof isolation structure. The heat dissipation channel of the distribution box passes through the moisture-proof cavity 6, which can prevent water vapor from entering the functional cavity. The distribution box body 1 adopts a double-door structure. Under normal circumstances, the front door 2 is opened and the distribution box is controlled and maintained through the front control panel. When it rains, the side door 3 is opened to form a rainproof mechanism, and the distribution box is controlled and maintained through the side control panel.

[0041] The front box door 2 is installed through the hinge on the side edge of the distribution box body 1, and the side box door 3 is installed through the hinge on the upper edge of the distribution box body 1. The partition 4 is installed on the top of the distribution box body 1, and the telescopic isolation plate 5 is connected to the bottom surface of the partition 4, and both sides of the telescopic isolation plate 5 are in close contact with the inner wall of the distribution box body 1.

[0042] A protective cover is provided through the bottom of the side box door 3, and the telescopic support leg 23 is installed in the protective cover.

[0043] The front box door 2 can be rotated to the side of the distribution box body 1, and the side box door 3 can be rotated to the top of the distribution box body 1, and then the telescopic support legs 23 are extended to support the side box door 3. The shielding formed by the side box door 3 can prevent rainwater from falling into the box, making it convenient for the staff to operate from the position of the moisture-proof cavity 6. The moisture-proof cavity 6 is formed by isolation through the partition 4 and the telescopic isolation plate 5. When the staff operates from the moisture-proof cavity 6, the telescopic isolation plate 5 can be lifted up and fixed to enter the functional cavity for control and maintenance.

[0044] A bottom plate 11 is installed at the bottom of the telescopic isolation plate 5, and positioning pieces 12 are provided on both sides of the bottom plate 11. The positioning pieces 12 are provided with anti-drop pins 13, and a card seat 14 is installed in the middle of the inner wall of the distribution box body 1.

[0045] After the telescopic isolation plate 5 is lifted, the bottom plate 11 and the positioning member 12 are moved to the position of the card seat 14, and the telescopic isolation plate 5 is retained by the connection between the anti-drop pin 13 and the card seat 14, thereby opening the passage between the moisture-proof cavity 6 and the functional cavity.

[0046] The heat dissipation groove 7 is arranged at the bottom of the side of the distribution box body 1, and the fan 8 is installed in the installation groove on the top of the partition 4. A cavity directed obliquely downward is provided in the air guide cover 9, and the heater 10 adopts a resistance wire heating structure, and a temperature sensor is provided at the position of the heater 10.

[0047] The heat dissipation slots 7 and the fan 8 of the present invention are arranged in a high and low offset manner, so that the heat dissipation airflow flows through the channel of the moisture-proof cavity 6 with a certain buffer, and the water vapor is retained in the moisture-proof cavity 6 as much as possible. The fan 8 is provided with a moisture-proof net 31, which can prevent the water vapor from further entering the functional cavity. At the same time, a heater 10 is provided on the air guide cover 9. When the temperature in the box is high, the fan 8 discharges the heat and can naturally evaporate the water vapor to ensure the dryness of the box. When the temperature in the box is low, the air can be heated by the heater 10 to evaporate the water vapor and take it away to ensure the dryness of the box.

[0048] A first guide rail 15 and a second guide rail 16 are arranged side by side on the inner wall of the side box door 3, and a closing plate 17 and a counterweight block 18 are respectively installed in the first guide rail 15 and the second guide rail 16. The adapter 20 is installed on the top of the first guide rail 15 and the second guide rail 16, and the sliding rope 19 makes a 180-degree turn in the adapter 20. A hanging seat 21 is installed on the side box door 3, and an elastic member 22 is connected between the hanging seat 21 and the closing plate 17.

[0049] When the side box door 3 is opened to form a rainproof structure, the heat dissipation groove 7 thereon must be blocked. Therefore, a sealing plate 17 is provided in the side box door 3. When the side box door 3 is closed and in a vertical state, the counterweight block 18 slides downward, and the gravity generated acts on the slide rope 19. After the adapter 20 is turned, an upward pulling force is generated to act on the sealing plate 17, which can enable the sealing plate 17 to overcome the elastic force of the elastic member 22 and move upward, making the heat dissipation groove 7 available, so that the heat dissipation channel is unobstructed. When the side box door 3 is opened to a horizontal or slightly upward state, the gravity generated by the counterweight block 18 is supported and offset by the side box door 3, and the elastic force of the elastic member 22 acts on the sealing plate 17, which moves to the position of the heat dissipation groove 7, can close the heat dissipation groove 7, and prevent rainwater from dripping from the position of the heat dissipation groove 7, so that it can form a complete rainproof structure.

[0050] A guide slot 24 extends through the side door 3 and is shielded by an outer baffle 26. A slide 25 is mounted in the guide slot 24 for limited sliding movement. A horizontal upper seal 27 is provided on the top of the outer baffle 26, and is in contact with the surface of the side door 3. A storage box 28 is mounted on the outer baffle 26 via a fixing 29, and a lower seal 30 is provided between the storage box 28 and the outer baffle 26, and is in contact with the surface of the side door 3.

[0051] When it rains but there is no need to open the side box door 3, the sealing plate 17 can also automatically move down to seal the heat dissipation slot 7 to prevent rainwater from entering the box. At this time, the distribution box can dissipate heat with the help of rainwater, and does not require airflow for heat dissipation. When the rain falls, the receiving box 28 is first located above the heat dissipation slot 7 to shield it. The upper seal 27 and the lower seal 30 can both play a guiding role. As more rainwater enters the receiving box 28, the gravity generated can be balanced with the gravity of the counterweight 18, so that the sealing plate 17 automatically moves down to shield the heat dissipation slot 7 from the inside. The receiving box 28 is assembled with fixings 29 and can be disassembled. After the rain stops, it can be disassembled to dispose of the rainwater.

[0052] A method for using a protective structure of a moisture-proof distribution box, the method comprising the following steps:

[0053] S1, normal operation, heat is dissipated by the staggered heat dissipation slots 7 and the fan 8, buffered by the moisture-proof cavity 6, and dehumidified by the moisture-proof net 31 on the fan 8. At the same time, when the temperature inside the box is low, the heater 10 heats the air to evaporate and remove water vapor;

[0054] S2, control and maintenance: In normal weather, the front door 2 is opened and the distribution box is controlled and maintained through the front control panel. When it rains, the side door 3 is opened to form a rain shield. Then, the telescopic isolation plate 5 is lifted upward and fixed to open the passage between the moisture-proof cavity 6 and the functional cavity. The distribution box is controlled and maintained through the side control panel.

[0055] S3, automatic rain protection, when the side box door 3 is opened, the heat dissipation groove 7 is closed by moving the sealing plate 17, so that the side box door 3 forms a complete rain protection structure. When it rains but the side box door 3 is not opened, the sealing plate 17 automatically moves down under the action of rainwater to close the heat dissipation groove 7, and the rainwater is processed after the rain stops.

[0056] When the present invention is in use: first, the distribution box adopts an isolated structure, and a moisture-proof cavity 6 is formed on the side of the functional cavity for installing electronic components through a moisture-proof isolation structure. The heat dissipation channel of the distribution box passes through the moisture-proof cavity 6, which can prevent water vapor from entering the functional cavity, and the distribution box body 1 adopts a double-door structure. Under normal circumstances, the front door 2 is opened, and the distribution box is controlled and repaired through the front control panel. When it rains, the side door 3 is opened to form a rainproof mechanism, and the distribution box is controlled and repaired through the side control panel. The front door 2 can be rotated to the side of the distribution box body 1, and the side door 3 can be rotated to the top of the distribution box body 1, and then the telescopic legs 23 are extended to support the side door 3. The shielding formed by the side door 3 can prevent rain Water falls into the box, which makes it convenient for the staff to operate from the position of the moisture-proof cavity 6. The moisture-proof cavity 6 is isolated and formed by the partition 4 and the telescopic isolation plate 5. When the staff operates from the moisture-proof cavity 6, the telescopic isolation plate 5 can be lifted and fixed to enter the functional cavity for control and maintenance. After the telescopic isolation plate 5 is lifted, the bottom plate 11 and the positioning member 12 are moved to the position of the card seat 14. The telescopic isolation plate 5 is maintained by the connection between the anti-drop pin 13 and the card seat 14, thereby opening the channel between the moisture-proof cavity 6 and the functional cavity. The heat dissipation slot 7 of the present invention is arranged with the fan 8 at a high and low offset, so that the heat dissipation airflow flows through the channel of the moisture-proof cavity 6, has a certain buffer, and keeps the water vapor in the moisture-proof cavity 6 as much as possible, and the fan 8 is provided with There is a moisture-proof net 31, which can prevent water vapor from further entering the functional cavity. At the same time, a heater 10 is provided on the air guide cover 9. When the temperature in the box is high, the fan 8 discharges heat, which can naturally evaporate the water vapor and ensure the dryness of the box. When the temperature in the box is low, the air can be heated by the heater 10 to evaporate the water vapor and take it away to ensure the dryness of the box. When the side box door 3 is opened to form a rainproof structure, the heat dissipation slot 7 thereon must be blocked. Therefore, a sealing plate 17 is provided in the side box door 3. When the side box door 3 is closed and in a vertical state, the counterweight block 18 slides downward, and the gravity generated acts on the slide rope 19. After the adapter 20 is turned, an upward pulling force is generated on the sealing plate 17, which can enable the sealing plate 17 to overcome the elastic member When the side box door 3 is opened to a horizontal or slightly upward state, the gravity generated by the counterweight 18 is supported and offset by the side box door 3, and the elastic force of the elastic member 22 acts on the sealing plate 17, which moves to the position of the heat dissipation slot 7, thereby sealing the heat dissipation slot 7 and preventing rainwater from dripping from the position of the heat dissipation slot 7, so that it can form a complete rainproof structure. When it rains but there is no need to open the side box door 3, the sealing plate 17 can also automatically move down to seal the heat dissipation slot 7 and prevent rainwater from entering the box. At this time, the distribution box can dissipate heat with the help of rainwater, and does not need airflow to dissipate heat. When rainwater falls, the accommodating box 28 is first located above the heat dissipation slot 7 to provide a shield.The upper seal 27 and the lower seal 30 both serve as guides. As more rainwater enters the storage box 28, the resulting gravity balances the gravity of the counterweight 18, causing the sealing plate 17 to automatically move downward, shielding the heat sink 7 from the inside. The storage box 28 is assembled with fixings 29 and can be disassembled. After the rain stops, it can be removed to dispose of the rainwater.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof protection structure for a distribution box, comprising a moisture-proof isolation structure arranged in a distribution box body (1), characterized in that: The moisture-proof isolation structure is composed of a partition (4) and a telescopic isolation plate (5), and a moisture-proof cavity (6) is formed on the side of the distribution box body (1) through the moisture-proof isolation structure. A front box door (2) is provided on the distribution box body (1) in a rotatable side opening manner, and a side box door (3) is provided on the distribution box body (1) in a rotatable upper opening manner. A heat dissipation slot (7) is provided on the side of the distribution box body (1) close to the moisture-proof cavity (6), and a fan (8) is fixedly installed on the partition (4), and an air guide cover (9) is mounted on the fan (8), and a heater (10) is provided on the air outlet of the air guide cover (9). A positioning structure is provided on the telescopic isolation plate (5), and the telescopic isolation plate (5) is fixed in a raised state by the positioning structure. A sealing plate (17) and a counterweight (18) are slidingly installed on the upper limit position of the side box door (3), and the sealing plate (17) and the counterweight (18) are slidingly installed on the upper limit position of the side box door (3). The plate (17) and the counterweight (18) are connected by a sliding rope (19), and the sliding rope (19) is connected to the adapter (20). The closing plate (17) and the counterweight (18) can be lifted and lowered by the sliding rope (19). The closing plate (17) is fixedly connected to an elastic member (22), and a telescopic support leg (23) is installed at the bottom of the side box door (3). The closing plate (17) is arranged on the inner side of the side box door (3), and an outer baffle (26) is slidably installed on the outer side of the side box door (3). The closing plate (17) and the outer baffle (26) are connected by a sliding seat (25), and the sliding seat (25) is arranged in the guide groove (24) of the side box door (3). A receiving box (28) with a water-guiding function is assembled on the outer baffle (26), and a moisture-proof net (31) is provided on the air inlet of the fan (8).

2. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: The space inside the distribution box body (1) is divided into a functional cavity and a moisture-proof cavity (6) by a moisture-proof isolation structure. The distribution device is installed through the functional cavity. The distribution device is provided with a front control panel and a side control panel, and the front control panel and the side control panel are respectively arranged toward the front box door (2) and the side box door (3).

3. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: The front box door (2) is installed through a hinge on the side edge of the distribution box body (1), and the side box door (3) is installed through a hinge on the upper edge of the distribution box body (1). The partition (4) is installed on the top of the distribution box body (1), and the telescopic isolation plate (5) is connected to the bottom surface of the partition (4), and both sides of the telescopic isolation plate (5) are in close contact with the inner wall of the distribution box body (1).

4. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: The heat dissipation groove (7) is arranged at the bottom of the side of the distribution box body (1), and the fan (8) is installed in the installation groove on the top of the partition (4). A cavity directed obliquely downward is provided in the air guide cover (9), and the heater (10) adopts a resistance wire heating structure, and a temperature sensor is provided at the position of the heater (10).

5. The protective structure of a moisture-proof distribution box according to claim 3, characterized in that: A bottom plate (11) is installed at the bottom of the telescopic isolation plate (5), and positioning pieces (12) are provided on both sides of the bottom plate (11). Anti-drop pins (13) are provided on the positioning pieces (12), and a card seat (14) is installed in the middle of the inner wall of the distribution box body (1).

6. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: A first guide rail (15) and a second guide rail (16) are arranged side by side on the inner wall of the side box door (3), and a closing plate (17) and a counterweight (18) are respectively installed in the first guide rail (15) and the second guide rail (16), the adapter (20) is installed on the top of the first guide rail (15) and the second guide rail (16), and the sliding rope (19) is turned 180 degrees in the adapter (20), a hanging seat (21) is installed on the side box door (3), and an elastic member (22) is connected between the hanging seat (21) and the closing plate (17).

7. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: A protective cover is provided through the bottom of the side box door (3), and the telescopic support leg (23) is installed in the protective cover.

8. The protective structure of a moisture-proof distribution box according to claim 1, characterized in that: The guide groove (24) is provided on the side box door (3) and is shielded by the outer baffle (26). The slide seat (25) is installed in the guide groove (24) in a limited sliding manner. A horizontal upper seal (27) is provided on the top of the outer baffle (26), and the upper seal (27) is in contact with the surface of the side box door (3).

9. The protective structure of a moisture-proof distribution box according to claim 8, characterized in that: The accommodating box (28) is mounted on the outer baffle (26) via a fixing member (29), and a lower seal (30) is provided between the accommodating box (28) and the outer baffle (26), wherein the lower seal (30) is in contact with and connected to the surface of the side box door (3).

10. A method for using the protective structure of a moisture-proof distribution box according to any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1, normal operation, heat is dissipated through the heat dissipation slots (7) and the fan (8) arranged at different heights, the moisture-proof cavity (6) is used for buffering, and dehumidification is performed through the moisture-proof net (31) on the fan (8). At the same time, when the temperature in the box is low, the air is heated by the heater (10) to evaporate the water vapor; S2, control and maintenance, in normal weather, the front box door (2) is opened, and the distribution box is controlled and maintained through the front control panel, while when it rains, the side box door (3) is opened to form a rainproof mechanism, and then the telescopic isolation plate (5) is lifted upward and fixed, thereby opening the passage between the moisture-proof cavity (6) and the functional cavity, and the distribution box is controlled and maintained through the side control panel; S3, automatic rain protection, when the side box door (3) is opened, the heat dissipation groove (7) is closed by moving the sealing plate (17), so that the side box door (3) constitutes a complete rain protection structure, and when rainy weather occurs but the side box door (3) is not opened, the sealing plate (17) automatically moves down under the action of rainwater to close the heat dissipation groove (7), and the rainwater is processed after the rain stops.

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